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Technical Rust removal

Discussion in 'The Hokey Ass Message Board' started by 59rambler, Jan 1, 2021.

  1. 59rambler
    Joined: Aug 10, 2014
    Posts: 13

    59rambler

    I have some small pedal car parts in would like to derust, looking for homemade concoction to soak parts. I was told molasses works good, any thoughts on what to use. Thanks for the help
     
  2. Budget36
    Joined: Nov 29, 2014
    Posts: 6,406

    Budget36
    Member

    Search Citric Acid here, some good info
     
  3. AldeanFan
    Joined: Dec 12, 2014
    Posts: 736

    AldeanFan

    I use vinegar in a big plastic tote.


    Sent from my iPhone using Tapatalk
     
    Gary 4T950 Chevy Guy likes this.
  4. BrandonB
    Joined: Feb 24, 2006
    Posts: 3,211

    BrandonB
    ALLIANCE MEMBER
    from nor cal

    31Vicky with a hemi and KiWinUS like this.

  5. clem
    Joined: Dec 20, 2006
    Posts: 3,358

    clem
    Member

    Do a search here. A lot of information on various methods. Molasses included.
    If you don’t get great results from searching, do a google search with the word Hamb in it.
     
    Budget36 likes this.
  6. lostone
    Joined: Oct 13, 2013
    Posts: 1,625

    lostone
    Member
    from kansas

    The best part of molasses is no worry about neutralizing any acids.
     
    LWEL9226 and ClarkH like this.
  7. Budget36
    Joined: Nov 29, 2014
    Posts: 6,406

    Budget36
    Member

    The worst part is the smell when it ages.
     
    LWEL9226 likes this.
  8. Rickybop
    Joined: May 23, 2008
    Posts: 7,038

    Rickybop
    Member
    from Michigan

    Citric acid
    Citric acid
    Citric acid

    It's the active ingredient in molasses.

    For the small amount you need, buy it in powdered form in the baking aisle at your grocery store. Mix into a container of water. Soak your parts for as long as it takes. Easy to wash the residue off afterwards. It's a mild acid, but you should still neutralize by dipping the parts in a solution of water and baking soda. Mix the baking soda water with the acid water and pour it on your lawn.

    Do a search for more in-depth information.
     
    stanlow69 and Bugguts like this.
  9. 59rambler
    Joined: Aug 10, 2014
    Posts: 13

    59rambler

    Thanks everybody, I have a few things to check out and quite a few options!
     
  10. inaford30
    Joined: Mar 9, 2009
    Posts: 45

    inaford30
    Member

    Would this work on chrome parts without hurting the chrome? Say a chrome rims with rust spots?

    Sent from my SM-J7008 using The H.A.M.B. mobile app
     
  11. 1952henry
    Joined: Jan 8, 2006
    Posts: 842

    1952henry
    Member

    Research bar keepers friend.
     
  12. anthony myrick
    Joined: Sep 4, 2009
    Posts: 7,653

    anthony myrick
    Member

    I dipped one in molasses for a week once.
    Did great.
     
  13. Rickybop
    Joined: May 23, 2008
    Posts: 7,038

    Rickybop
    Member
    from Michigan

    In my experience... YES.
    Proof... Just finished restoring a chrome frame bicycle for a little friend of mine. There was rust. I soaked it in the citric acid solution till there wasn't any rust and then some. Didn't seem to touch the chrome. Not that I could see. But of course you need to protect it somehow from rusting again. Chrome cleaner and wax helps.

    0101211420.jpg
     
  14. evintho
    Joined: May 28, 2007
    Posts: 1,722

    evintho
    Member

  15. Fortunateson
    Joined: Apr 30, 2012
    Posts: 4,027

    Fortunateson
    Member

    I've tried Citric acid and was mildly impressed. My go to methods are reverse electrolysis (ask Uncle Google for instructions) and Evaporust which is a store bought item.
     
    Last edited: Jan 1, 2021
    anthony myrick likes this.
  16. pirate
    Joined: Jun 29, 2006
    Posts: 641

    pirate
    Member
    from Alabama

    I like Evapo Rust works well is reusable. Only downside it would be expensive for large items. The reverse electrolysis using an old battery charger also works well especially on very heavily rusted items.
     
  17. I have used “Rust 911” with great success. After reading an early post in this thread I have just orders 5lb Oxalic acid. $18.99 & free shipping on eBay.
     
  18. ronzmtrwrx
    Joined: Sep 9, 2008
    Posts: 639

    ronzmtrwrx
    Member

    I have used reverse electrolysis before and in my opinion, it’s downside is it’s more of a “line of sight” type process. It also seemed to be a slow process. I’m a fan of citric acid for several reasons. The main one being, it gets everywhere. Like a hood that has inner structure, deck lid, doors, etc. It’s relatively inexpensive and while it does eventually weaken or wear itself out, a batch will work for quite a while. I won’t use anything else. I buy it in bulk in 50 lb bags off eBay.
     
    Rickybop likes this.
  19. 59Apachegail
    Joined: Apr 30, 2011
    Posts: 1,381

    59Apachegail
    Member
    from New York

    I just redid some sad irons I found at an estate sale.
    Front iron before evaporust
    D67EE037-D856-4C6A-B547-A127D8C835D4.jpeg
    Same iron after evaporust (2 hour soak)
    F40902AD-852A-4E47-882F-7E4EF397B246.jpeg
    I was a skeptic but it actually works pretty well. It is not for use on anything but steel and care should be taken not to soak for too long. You can reuse evaporust over and over. I ran the used evaporust through a coffee filter after I was done to get all the junk out of it.
     
  20. Bugguts
    Joined: Aug 13, 2011
    Posts: 704

    Bugguts
    Member

    I have used citric acid with good results. Simple, cheap, and easy to dispose of.
    I soaked a rusty chrome shifter for a few days and it came out amazing. It was so rusty, I couldn’t get anything to move, and after, it was like new. Didn’t hurt the chrome at all and all rust looked to be gone.
     
    Rickybop and ronzmtrwrx like this.
  21. LWEL9226
    Joined: Jul 7, 2012
    Posts: 306

    LWEL9226
    Member
    from So. Oregon

    I have a 5 gal. bucket full that I am afraid to open.... It is about 3 years old.... LOL :eek: :eek:

    LynnW
     
    Budget36 likes this.
  22. Last edited: Jan 2, 2021
  23. stanlow69
    Joined: Feb 21, 2010
    Posts: 5,401

    stanlow69
    Member
    from red oak

    15 minutes in my citric acid. Scan0491.jpg Scan0490.jpg
     
    Rickybop likes this.
  24. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,122

    gimpyshotrods
    ALLIANCE MEMBER

    White vinegar. Cheap and easy
     
    inaford30, bill gruendeman and X38 like this.
  25. 59rambler
    Joined: Aug 10, 2014
    Posts: 13

    59rambler

    Just ordered some oxalic acid, looks like it worked great on the bikes. Cheap enough to give it a try.
     
  26. J. A. Miller
    Joined: Dec 30, 2010
    Posts: 1,572

    J. A. Miller
    ALLIANCE MEMBER
    from Central NY

    EvapoRust is available at Harbor Freight and the price isn't bad when you use one of their 20% coupons.
     
    inaford30 likes this.
  27. inaford30
    Joined: Mar 9, 2009
    Posts: 45

    inaford30
    Member

    *Hazard Fraud* I'll look for this when I go next!

    Sent from my SM-J7008 using The H.A.M.B. mobile app
     

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